Sphygmomanometer



FIG. 1 is a top plan view of a blood pressure measurement unit illustrating my new design;

FIG. 2 is a front elevation of the unit of FIG. 1;

FIG. 3 is a side elevation showing the unit as it appears from the right of FIG. 2;

FIG. 4 is a rear elevation showing the unit as it appears at the rear of FIG. 2; and

FIG. 5 is a bottom plan view illustrating the unit as it appears from the bottom of FIG. 2. 

The ornamental design for a sphygmomanometer, as shown and described. 